1988 Vitosha New Otani Open – Singles
# 1988 Vitosha New Otani Open – Singles

Conchita Martínez won in the final 6–1, 6–2 against Barbara Paulus.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

* Katerina Maleeva (semifinals)
* Barbara Paulus (final)
* Sabrina Goleš (quarterfinals)
* Angeliki Kanellopoulou (first round)
* Sandra Wasserman (quarterfinals)
* Conchita Martínez (champion)
* Ann Devries (semifinals)
* Iva Budařová (quarterfinals)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | K Maleeva | 6 | 7 | | | | | | | | | | | | | | | | | | | | |
| | M Strandlund | 1 | 6 | | 1 | K Maleeva | 6 | 6 | | | | | | | | | | | | | | | |
| | M Strebel | 6 | 6 | | | M Strebel | 0 | 1 | | | | | | | | | | | | | | | |
| | J Salmon | 1 | 2 | | | | | | | 1 | K Maleeva | 5 | 6 | 6 | | | | | | | | | |
| | H Sprung | 6 | 6 | | | | | | | 8 | I Budařová | 7 | 4 | 3 | | | | | | | | | |
| | E Raponi-Longo | 0 | 2 | | | H Sprung | 6 | 5 | | | | | | | | | | | | | | | |
| | O Tsarbopoulou | 3 | 2 | | 8 | I Budařová | 7 | 7 | | | | | | | | | | | | | | | |
| 8 | I Budařová | 6 | 6 | | | | | | | | | | | | 1 | K Maleeva | 6 | 2 | | | | | |
| 3 | S Goleš | 6 | 6 | | | | | | | | | | | | 6 | C Martínez | 7 | 6 | | | | | |
| | D Rangelova | 4 | 2 | | 3 | S Goleš | 6 | 6 | | | | | | | | | | | | | | | |
| | V Paquet | 7 | 6 | | | V Paquet | 1 | 3 | | | | | | | | | | | | | | | |
| | P Huber | 5 | 3 | | | | | | | 3 | S Goleš | 6 | 2 | | | | | | | | | | |
| | V Martinek | 2 | 6 | 6 | | | | | | 6 | C Martínez | 7 | 6 | | | | | | | | | | |
| | J Jonerup | 6 | 3 | 3 | | V Martinek | 2 | 2 | | | | | | | | | | | | | | | |
| | R Milorieva | 0 | 0 | | 6 | C Martínez | 6 | 6 | | | | | | | | | | | | | | | |
| 6 | C Martínez | 6 | 6 | | | | | | | | | | | | | | | | | 6 | Conchita Martínez | 6 | 6 |
| 7 | A Devries | 6 | 3 | 6 | | | | | | | | | | | | | | | | 2 | Barbara Paulus | 1 | 2 |
| | B Diesner | 2 | 6 | 2 | 7 | A Devries | 0 | 6 | 6 | | | | | | | | | | | | | | |
| | S Frankl | 6 | 6 | | | S Frankl | 6 | 1 | 4 | | | | | | | | | | | | | | |
| | A Betzner | 4 | 4 | | | | | | | 7 | A Devries | 6 | 6 | | | | | | | | | | |
| | R Maršíková | 2 | 3 | | | | | | | | H Fukárková | 2 | 2 | | | | | | | | | | |
| | M-C Damas | 6 | 6 | | | M-C Damas | 6 | 6 | 2 | | | | | | | | | | | | | | |
| | H Fukárková | 2 | 6 | 6 | | H Fukárková | 7 | 3 | 6 | | | | | | | | | | | | | | |
| 4 | A Kanellopoulou | 6 | 1 | 4 | | | | | | | | | | | 7 | A Devries | 7 | 1 | 2 | | | | |
| 5 | S Wasserman | 6 | 4 | 6 | | | | | | | | | | | 2 | B Paulus | 6 | 6 | 6 | | | | |
| | H Dahlström | 0 | 6 | 3 | 5 | S Wasserman | 6 | 6 | | | | | | | | | | | | | | | |
| | S Loosemore | 2 | 6 | 6 | | S Loosemore | 4 | 3 | | | | | | | | | | | | | | | |
| | C Hofmann | 6 | 1 | 4 | | | | | | 5 | S Wasserman | 3 | 6 | 4 | | | | | | | | | |
| | S Hack | 6 | 2 | 6 | | | | | | 2 | B Paulus | 6 | 4 | 6 | | | | | | | | | |
| | A Tiezzi | 4 | 6 | 3 | | S Hack | 1 | 0 | | | | | | | | | | | | | | | |
| | D Krajčovičová | 6 | 2 | | 2 | B Paulus | 6 | 6 | | | | | | | | | | | | | | | |
| 2 | B Paulus | 7 | 6 | | | | | | | | | | | | | | | | | | | | |
